 /* Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo 
 * ----------------------------------------------------------- 
 * 
 * The DHTML Calendar, version 1.0 "It is happening again" 
 * 
 * Details and latest version at: 
 * www.dynarch.com/projects/calendar 
 * 
 * This script is developed by Dynarch.com.  Visit us at www.dynarch.com. 
 * 
 * This script is distributed under the GNU Lesser General Public License. 
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html 
 */ 
 
// $Id$ 
 
/** The Calendar object constructor. */ 
Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) { 
    // member variables 
    this.activeDiv = null; 
    this.currentDateEl = null; 
    this.getDateStatus = null; 
    this.getDateToolTip = null; 
    this.getDateText = null; 
    this.timeout = null; 
    this.onSelected = onSelected || null; 
    this.onClose = onClose || null; 
    this.dragging = false; 
    this.hidden = false; 
    this.minYear = 1970; 
    this.maxYear = 2050; 
    this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"]; 
    this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"]; 
    this.isPopup = true; 
    this.weekNumbers = true; 
    this.firstDayOfWeek = typeof firstDayOfWeek == "number" ? firstDayOfWeek : Calendar._FD; // 0 for Sunday, 1 for Monday, etc. 
    this.showsOtherMonths = false; 
    this.dateStr = dateStr; 
    this.ar_days = null; 
    this.showsTime = false; 
    this.time24 = true; 
    this.yearStep = 2; 
    this.hiliteToday = true; 
    this.multiple = null; 
    // HTML elements 
    this.table = null; 
    this.element = null; 
    this.tbody = null; 
    this.firstdayname = null; 
    // Combo boxes 
    this.monthsCombo = null; 
    this.yearsCombo = null; 
    this.hilitedMonth = null; 
    this.activeMonth = null; 
    this.hilitedYear = null; 
    this.activeYear = null; 
    // Information 
    this.dateClicked = false; 
 
    // one-time initializations 
    if (typeof Calendar._SDN == "undefined") { 
        // table of short day names 
        if (typeof Calendar._SDN_len == "undefined") 
            Calendar._SDN_len = 3; 
        var ar = new Array(); 
        for (var i = 8; i > 0;) { 
            ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len); 
        } 
        Calendar._SDN = ar; 
        // table of short month names 
        if (typeof Calendar._SMN_len == "undefined") 
            Calendar._SMN_len = 3; 
        ar = new Array(); 
        for (var i = 12; i > 0;) { 
            ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len); 
        } 
        Calendar._SMN = ar; 
    } 
}; 
 
// ** constants 
 
/// "static", needed for event handlers. 
Calendar._C = null; 
 
/// detect a special case of "web browser" 
Calendar.is_ie = ( /msie/i.test(navigator.userAgent) && 
           !/opera/i.test(navigator.userAgent) ); 
 
Calendar.is_ie5 = ( Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent) ); 
 
/// detect Opera browser 
Calendar.is_opera = /opera/i.test(navigator.userAgent); 
 
/// detect KHTML-based browsers 
Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent); 
 
// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate 
//        library, at some point. 
 
Calendar.getAbsolutePos = function(el) { 
    var SL = 0, ST = 0; 
    var is_div = /^div$/i.test(el.tagName); 
    if (is_div && el.scrollLeft) 
        SL = el.scrollLeft; 
    if (is_div && el.scrollTop) 
        ST = el.scrollTop; 
    var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST }; 
    if (el.offsetParent) { 
        var tmp = this.getAbsolutePos(el.offsetParent); 
        r.x += tmp.x; 
        r.y += tmp.y; 
    } 
    return r; 
}; 
 
Calendar.isRelated = function (el, evt) { 
    var related = evt.relatedTarget; 
    if (!related) { 
        var type = evt.type; 
        if (type == "mouseover") { 
            related = evt.fromElement; 
        } else if (type == "mouseout") { 
            related = evt.toElement; 
        } 
    } 
    while (related) { 
        if (related == el) { 
            return true; 
        } 
        related = related.parentNode; 
    } 
    return false; 
}; 
 
Calendar.removeClass = function(el, className) { 
    if (!(el && el.className)) { 
        return; 
    } 
    var cls = el.className.split(" "); 
    var ar = new Array(); 
    for (var i = cls.length; i > 0;) { 
        if (cls[--i] != className) { 
            ar[ar.length] = cls[i]; 
        } 
    } 
    el.className = ar.join(" "); 
}; 
 
Calendar.addClass = function(el, className) { 
    Calendar.removeClass(el, className); 
    el.className += " " + className; 
}; 
 
// FIXME: the following 2 functions totally suck, are useless and should be replaced immediately. 
Calendar.getElement = function(ev) { 
    var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget; 
    while (f.nodeType != 1 || /^div$/i.test(f.tagName)) 
        f = f.parentNode; 
    return f; 
}; 
 
Calendar.getTargetElement = function(ev) { 
    var f = Calendar.is_ie ? window.event.srcElement : ev.target; 
    while (f.nodeType != 1) 
        f = f.parentNode; 
    return f; 
}; 
 
Calendar.stopEvent = function(ev) { 
    ev || (ev = window.event); 
    if (Calendar.is_ie) { 
        ev.cancelBubble = true; 
        ev.returnValue = false; 
    } else { 
        ev.preventDefault(); 
        ev.stopPropagation(); 
    } 
    return false; 
}; 
 
Calendar.addEvent = function(el, evname, func) { 
    if (el.attachEvent) { // IE 
        el.attachEvent("on" + evname, func); 
    } else if (el.addEventListener) { // Gecko / W3C 
        el.addEventListener(evname, func, true); 
    } else { 
        el["on" + evname] = func; 
    } 
}; 
 
Calendar.removeEvent = function(el, evname, func) { 
    if (el.detachEvent) { // IE 
        el.detachEvent("on" + evname, func); 
    } else if (el.removeEventListener) { // Gecko / W3C 
        el.removeEventListener(evname, func, true); 
    } else { 
        el["on" + evname] = null; 
    } 
}; 
 
Calendar.createElement = function(type, parent) { 
    var el = null; 
    if (document.createElementNS) { 
        // use the XHTML namespace; IE won't normally get here unless 
        // _they_ "fix" the DOM2 implementation. 
        el = document.createElementNS("http://www.w3.org/1999/xhtml", type); 
    } else { 
        el = document.createElement(type); 
    } 
    if (typeof parent != "undefined") { 
        parent.appendChild(el); 
    } 
    return el; 
}; 
 
// END: UTILITY FUNCTIONS 
 
// BEGIN: CALENDAR STATIC FUNCTIONS 
 
/** Internal -- adds a set of events to make some element behave like a button. */ 
Calendar._add_evs = function(el) { 
    with (Calendar) { 
        addEvent(el, "mouseover", dayMouseOver); 
        addEvent(el, "mousedown", dayMouseDown); 
        addEvent(el, "mouseout", dayMouseOut); 
        if (is_ie) { 
            addEvent(el, "dblclick", dayMouseDblClick); 
            el.setAttribute("unselectable", true); 
        } 
    } 
}; 
 
Calendar.findMonth = function(el) { 
    if (typeof el.month != "undefined") { 
        return el; 
    } else if (typeof el.parentNode.month != "undefined") { 
        return el.parentNode; 
    } 
    return null; 
}; 
 
Calendar.findYear = function(el) { 
    if (typeof el.year != "undefined") { 
        return el; 
    } else if (typeof el.parentNode.year != "undefined") { 
        return el.parentNode; 
    } 
    return null; 
}; 
 
Calendar.showMonthsCombo = function () { 
    var cal = Calendar._C; 
    if (!cal) { 
        return false; 
    } 
    var cal = cal; 
    var cd = cal.activeDiv; 
    var mc = cal.monthsCombo; 
    if (cal.hilitedMonth) { 
        Calendar.removeClass(cal.hilitedMonth, "hilite"); 
    } 
    if (cal.activeMonth) { 
        Calendar.removeClass(cal.activeMonth, "active"); 
    } 
    var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()]; 
    Calendar.addClass(mon, "active"); 
    cal.activeMonth = mon; 
    var s = mc.style; 
    s.display = "block"; 
    if (cd.navtype < 0) 
        s.left = cd.offsetLeft + "px"; 
    else { 
        var mcw = mc.offsetWidth; 
        if (typeof mcw == "undefined") 
            // Konqueror brain-dead techniques 
            mcw = 50; 
        s.left = (cd.offsetLeft + cd.offsetWidth - mcw) + "px"; 
    } 
    s.top = (cd.offsetTop + cd.offsetHeight) + "px"; 
}; 
 
Calendar.showYearsCombo = function (fwd) { 
    var cal = Calendar._C; 
    if (!cal) { 
        return false; 
    } 
    var cal = cal; 
    var cd = cal.activeDiv; 
    var yc = cal.yearsCombo; 
    if (cal.hilitedYear) { 
        Calendar.removeClass(cal.hilitedYear, "hilite"); 
    } 
    if (cal.activeYear) { 
        Calendar.removeClass(cal.activeYear, "active"); 
    } 
    cal.activeYear = null; 
    var Y = cal.date.getFullYear() + (fwd ? 1 : -1); 
    var yr = yc.firstChild; 
    var show = false; 
    for (var i = 12; i > 0; --i) { 
        if (Y >= cal.minYear && Y <= cal.maxYear) { 
            yr.innerHTML = Y; 
            yr.year = Y; 
            yr.style.display = "block"; 
            show = true; 
        } else { 
            yr.style.display = "none"; 
        } 
        yr = yr.nextSibling; 
        Y += fwd ? cal.yearStep : -cal.yearStep; 
    } 
    if (show) { 
        var s = yc.style; 
        s.display = "block"; 
        if (cd.navtype < 0) 
            s.left = cd.offsetLeft + "px"; 
        else { 
            var ycw = yc.offsetWidth; 
            if (typeof ycw == "undefined") 
                // Konqueror brain-dead techniques 
                ycw = 50; 
            s.left = (cd.offsetLeft + cd.offsetWidth - ycw) + "px"; 
        } 
        s.top = (cd.offsetTop + cd.offsetHeight) + "px"; 
    } 
}; 
 
// event handlers 
 
Calendar.tableMouseUp = function(ev) { 
    var cal = Calendar._C; 
    if (!cal) { 
        return false; 
    } 
    if (cal.timeout) { 
        clearTimeout(cal.timeout); 
    } 
    var el = cal.activeDiv; 
    if (!el) { 
        return false; 
    } 
    var target = Calendar.getTargetElement(ev); 
    ev || (ev = window.event); 
    Calendar.removeClass(el, "active"); 
    if (target == el || target.parentNode == el) { 
        Calendar.cellClick(el, ev); 
    } 
    var mon = Calendar.findMonth(target); 
    var date = null; 
    if (mon) { 
        date = new Date(cal.date); 
        if (mon.month != date.getMonth()) { 
            date.setMonth(mon.month); 
            cal.setDate(date); 
            cal.dateClicked = false; 
            cal.callHandler(); 
        } 
    } else { 
        var year = Calendar.findYear(target); 
        if (year) { 
            date = new Date(cal.date); 
            if (year.year != date.getFullYear()) { 
                date.setFullYear(year.year); 
                cal.setDate(date); 
                cal.dateClicked = false; 
                cal.callHandler(); 
            } 
        } 
    } 
    with (Calendar) { 
        removeEvent(document, "mouseup", tableMouseUp); 
        removeEvent(document, "mouseover", tableMouseOver); 
        removeEvent(document, "mousemove", tableMouseOver); 
        cal._hideCombos(); 
        _C = null; 
        return stopEvent(ev); 
    } 
}; 
 
Calendar.tableMouseOver = function (ev) { 
    var cal = Calendar._C; 
    if (!cal) { 
        return; 
    } 
    var el = cal.activeDiv; 
    var target = Calendar.getTargetElement(ev); 
    if (target == el || target.parentNode == el) { 
        Calendar.addClass(el, "hilite active"); 
        Calendar.addClass(el.parentNode, "rowhilite"); 
    } else { 
        if (typeof el.navtype == "undefined" || (el.navtype != 50 && (el.navtype == 0 || Math.abs(el.navtype) > 2))) 
            Calendar.removeClass(el, "active"); 
        Calendar.removeClass(el, "hilite"); 
        Calendar.removeClass(el.parentNode, "rowhilite"); 
    } 
    ev || (ev = window.event); 
    if (el.navtype == 50 && target != el) { 
        var pos = Calendar.getAbsolutePos(el); 
        var w = el.offsetWidth; 
        var x = ev.clientX; 
        var dx; 
        var decrease = true; 
        if (x > pos.x + w) { 
            dx = x - pos.x - w; 
            decrease = false; 
        } else 
            dx = pos.x - x; 
 
        if (dx < 0) dx = 0; 
        var range = el._range; 
        var current = el._current; 
        var count = Math.floor(dx / 10) % range.length; 
        for (var i = range.length; --i >= 0;) 
            if (range[i] == current) 
                break; 
        while (count-- > 0) 
            if (decrease) { 
                if (--i < 0) 
                    i = range.length - 1; 
            } else if ( ++i >= range.length ) 
                i = 0; 
        var newval = range[i]; 
        el.innerHTML = newval; 
 
        cal.onUpdateTime(); 
    } 
    var mon = Calendar.findMonth(target); 
    if (mon) { 
        if (mon.month != cal.date.getMonth()) { 
            if (cal.hilitedMonth) { 
                Calendar.removeClass(cal.hilitedMonth, "hilite"); 
            } 
            Calendar.addClass(mon, "hilite"); 
            cal.hilitedMonth = mon; 
        } else if (cal.hilitedMonth) { 
            Calendar.removeClass(cal.hilitedMonth, "hilite"); 
        } 
    } else { 
        if (cal.hilitedMonth) { 
            Calendar.removeClass(cal.hilitedMonth, "hilite"); 
        } 
        var year = Calendar.findYear(target); 
        if (year) { 
            if (year.year != cal.date.getFullYear()) { 
                if (cal.hilitedYear) { 
                    Calendar.removeClass(cal.hilitedYear, "hilite"); 
                } 
                Calendar.addClass(year, "hilite"); 
                cal.hilitedYear = year; 
            } else if (cal.hilitedYear) { 
                Calendar.removeClass(cal.hilitedYear, "hilite"); 
            } 
        } else if (cal.hilitedYear) { 
            Calendar.removeClass(cal.hilitedYear, "hilite"); 
        } 
    } 
    return Calendar.stopEvent(ev); 
}; 
 
Calendar.tableMouseDown = function (ev) { 
    if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) { 
        return Calendar.stopEvent(ev); 
    } 
}; 
 
Calendar.calDragIt = function (ev) { 
    var cal = Calendar._C; 
    if (!(cal && cal.dragging)) { 
        return false; 
    } 
    var posX; 
    var posY; 
    if (Calendar.is_ie) { 
        posY = window.event.clientY + document.body.scrollTop; 
        posX = window.event.clientX + document.body.scrollLeft; 
    } else { 
        posX = ev.pageX; 
        posY = ev.pageY; 
    } 
    cal.hideShowCovered(); 
    var st = cal.element.style; 
    st.left = (posX - cal.xOffs) + "px"; 
    st.top = (posY - cal.yOffs) + "px"; 
    return Calendar.stopEvent(ev); 
}; 
 
Calendar.calDragEnd = function (ev) { 
    var cal = Calendar._C; 
    if (!cal) { 
        return false; 
    } 
    cal.dragging = false; 
    with (Calendar) { 
        removeEvent(document, "mousemove", calDragIt); 
        removeEvent(document, "mouseup", calDragEnd); 
        tableMouseUp(ev); 
    } 
    cal.hideShowCovered(); 
}; 
 
Calendar.dayMouseDown = function(ev) { 
    var el = Calendar.getElement(ev); 
    if (el.disabled) { 
        return false; 
    } 
    var cal = el.calendar; 
    cal.activeDiv = el; 
    Calendar._C = cal; 
    if (el.navtype != 300) with (Calendar) { 
        if (el.navtype == 50) { 
            el._current = el.innerHTML; 
            addEvent(document, "mousemove", tableMouseOver); 
        } else 
            addEvent(document, Calendar.is_ie5 ? "mousemove" : "mouseover", tableMouseOver); 
        addClass(el, "hilite active"); 
        addEvent(document, "mouseup", tableMouseUp); 
    } else if (cal.isPopup) { 
        cal._dragStart(ev); 
    } 
    if (el.navtype == -1 || el.navtype == 1) { 
        if (cal.timeout) clearTimeout(cal.timeout); 
        cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250); 
    } else if (el.navtype == -2 || el.navtype == 2) { 
        if (cal.timeout) clearTimeout(cal.timeout); 
        cal.timeout = setTimeout((el.navtype > 0) ? "Calendar.showYearsCombo(true)" : "Calendar.showYearsCombo(false)", 250); 
    } else { 
        cal.timeout = null; 
    } 
    return Calendar.stopEvent(ev); 
}; 
 
Calendar.dayMouseDblClick = function(ev) { 
    Calendar.cellClick(Calendar.getElement(ev), ev || window.event); 
    if (Calendar.is_ie) { 
        document.selection.empty(); 
    } 
}; 
 
Calendar.dayMouseOver = function(ev) { 
    var el = Calendar.getElement(ev); 
    if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) { 
        return false; 
    } 
    if (el.ttip) { 
        if (el.ttip.substr(0, 1) == "_") { 
            el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1); 
        } 
        el.calendar.tooltips.innerHTML = el.ttip; 
    } 
    if (el.navtype != 300) { 
        Calendar.addClass(el, "hilite"); 
        if (el.caldate) { 
            Calendar.addClass(el.parentNode, "rowhilite"); 
            var cal = el.calendar; 
            if (cal && cal.getDateToolTip) { 
                var d = el.caldate; 
                window.status = d; 
                el.title = cal.getDateToolTip(d, d.getFullYear(), d.getMonth(), d.getDate()); 
            } 
        } 
    } 
    return Calendar.stopEvent(ev); 
}; 
 
Calendar.dayMouseOut = function(ev) { 
    with (Calendar) { 
        var el = getElement(ev); 
        if (isRelated(el, ev) || _C || el.disabled) 
            return false; 
        removeClass(el, "hilite"); 
        if (el.caldate) 
            removeClass(el.parentNode, "rowhilite"); 
        if (el.calendar) 
            el.calendar.tooltips.innerHTML = _TT["SEL_DATE"]; 
        // return stopEvent(ev); 
    } 
}; 
 
/** 
 *  A generic "click" handler :) handles all types of buttons defined in this 
 *  calendar. 
 */ 
Calendar.cellClick = function(el, ev) { 
    var cal = el.calendar; 
    var closing = false; 
    var newdate = false; 
    var date = null; 
    if (typeof el.navtype == "undefined") { 
        if (cal.currentDateEl) { 
            Calendar.removeClass(cal.currentDateEl, "selected"); 
            Calendar.addClass(el, "selected"); 
            closing = (cal.currentDateEl == el); 
            if (!closing) { 
                cal.currentDateEl = el; 
            } 
        } 
        cal.date.setDateOnly(el.caldate); 
        date = cal.date; 
        var other_month = !(cal.dateClicked = !el.otherMonth); 
        if (!other_month && !cal.currentDateEl && cal.multiple) 
            cal._toggleMultipleDate(new Date(date)); 
        else 
            newdate = !el.disabled; 
        // a date was clicked 
        if (other_month) 
            cal._init(cal.firstDayOfWeek, date); 
    } else { 
        if (el.navtype == 200) { 
            Calendar.removeClass(el, "hilite"); 
            cal.callCloseHandler(); 
            return; 
        } 
        date = new Date(cal.date); 
        if (el.navtype == 0) 
            date.setDateOnly(new Date()); // TODAY 
        // unless "today" was clicked, we assume no date was clicked so 
        // the selected handler will know not to close the calenar when 
        // in single-click mode. 
        // cal.dateClicked = (el.navtype == 0); 
        cal.dateClicked = false; 
        var year = date.getFullYear(); 
        var mon = date.getMonth(); 
        function setMonth(m) { 
            var day = date.getDate(); 
            var max = date.getMonthDays(m); 
            if (day > max) { 
                date.setDate(max); 
            } 
            date.setMonth(m); 
        }; 
        switch (el.navtype) { 
            case 400: 
            Calendar.removeClass(el, "hilite"); 
            var text = Calendar._TT["ABOUT"]; 
            if (typeof text != "undefined") { 
                text += cal.showsTime ? Calendar._TT["ABOUT_TIME"] : ""; 
            } else { 
                // FIXME: this should be removed as soon as lang files get updated! 
                text = "Help and about box text is not translated into this language.\n" + 
                    "If you know this language and you feel generous please update\n" + 
                    "the corresponding file in \"lang\" subdir to match calendar-en.js\n" + 
                    "and send it back to <mihai_bazon@yahoo.com> to get it into the distribution  ;-)\n\n" + 
                    "Thank you!\n" + 
                    "http://dynarch.com/mishoo/calendar.epl\n"; 
            } 
            alert(text); 
            return; 
            case -2: 
            if (year > cal.minYear) { 
                date.setFullYear(year - 1); 
            } 
            break; 
            case -1: 
            if (mon > 0) { 
                setMonth(mon - 1); 
            } else if (year-- > cal.minYear) { 
                date.setFullYear(year); 
                setMonth(11); 
            } 
            break; 
            case 1: 
            if (mon < 11) { 
                setMonth(mon + 1); 
            } else if (year < cal.maxYear) { 
                date.setFullYear(year + 1); 
                setMonth(0); 
            } 
            break; 
            case 2: 
            if (year < cal.maxYear) { 
                date.setFullYear(year + 1); 
            } 
            break; 
            case 100: 
            cal.setFirstDayOfWeek(el.fdow); 
            return; 
            case 50: 
            var range = el._range; 
            var current = el.innerHTML; 
            for (var i = range.length; --i >= 0;) 
                if (range[i] == current) 
                    break; 
            if (ev && ev.shiftKey) { 
                if (--i < 0) 
                    i = range.length - 1; 
            } else if ( ++i >= range.length ) 
                i = 0; 
            var newval = range[i]; 
            el.innerHTML = newval; 
            cal.onUpdateTime(); 
            return; 
            case 0: 
            // TODAY will bring us here 
            if ((typeof cal.getDateStatus == "function") && 
                cal.getDateStatus(date, date.getFullYear(), date.getMonth(), date.getDate())) { 
                return false; 
            } 
            break; 
        } 
        if (!date.equalsTo(cal.date)) { 
            cal.setDate(date); 
            newdate = true; 
        } else if (el.navtype == 0) 
            newdate = closing = true; 
    } 
    if (newdate) { 
        ev && cal.callHandler(); 
    } 
    if (closing) { 
        Calendar.removeClass(el, "hilite"); 
        ev && cal.callCloseHandler(); 
    } 
}; 
 
// END: CALENDAR STATIC FUNCTIONS 
 
// BEGIN: CALENDAR OBJECT FUNCTIONS 
 
/** 
 *  This function creates the calendar inside the given parent.  If _par is 
 *  null than it creates a popup calendar inside the BODY element.  If _par is 
 *  an element, be it BODY, then it creates a non-popup calendar (still 
 *  hidden).  Some properties need to be set before calling this function. 
 */ 
Calendar.prototype.create = function (_par) { 
    var parent = null; 
    if (! _par) { 
        // default parent is the document body, in which case we create 
        // a popup calendar. 
        parent = document.getElementsByTagName("body")[0]; 
        this.isPopup = true; 
    } else { 
        parent = _par; 
        this.isPopup = false; 
    } 
    this.date = this.dateStr ? new Date(this.dateStr) : new Date(); 
 
    var table = Calendar.createElement("table"); 
    this.table = table; 
    table.cellSpacing = 0; 
    table.cellPadding = 0; 
    table.calendar = this; 
    Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown); 
 
    var div = Calendar.createElement("div"); 
    this.element = div; 
    div.className = "calendar"; 
    if (this.isPopup) { 
        div.style.position = "absolute"; 
        div.style.display = "none"; 
    } 
    div.appendChild(table); 
 
    var thead = Calendar.createElement("thead", table); 
    var cell = null; 
    var row = null; 
 
    var cal = this; 
    var hh = function (text, cs, navtype) { 
        cell = Calendar.createElement("td", row); 
        cell.colSpan = cs; 
        cell.className = "button"; 
        if (navtype != 0 && Math.abs(navtype) <= 2) 
            cell.className += " nav"; 
        Calendar._add_evs(cell); 
        cell.calendar = cal; 
        cell.navtype = navtype; 
        cell.innerHTML = "<div unselectable='on'>" + text + "</div>"; 
        return cell; 
    }; 
 
    row = Calendar.createElement("tr", thead); 
    var title_length = 6; 
    (this.isPopup) && --title_length; 
    (this.weekNumbers) && ++title_length; 
 
    hh("?", 1, 400).ttip = Calendar._TT["INFO"]; 
    this.title = hh("", title_length, 300); 
    this.title.className = "title"; 
    if (this.isPopup) { 
        this.title.ttip = Calendar._TT["DRAG_TO_MOVE"]; 
        this.title.style.cursor = "move"; 
        hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"]; 
    } 
 
    row = Calendar.createElement("tr", thead); 
    row.className = "headrow"; 
 
    this._nav_py = hh("&#x00ab;", 1, -2); 
    this._nav_py.ttip = Calendar._TT["PREV_YEAR"]; 
 
    this._nav_pm = hh("&#x2039;", 1, -1); 
    this._nav_pm.ttip = Calendar._TT["PREV_MONTH"]; 
 
    this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0); 
    this._nav_now.ttip = Calendar._TT["GO_TODAY"]; 
 
    this._nav_nm = hh("&#x203a;", 1, 1); 
    this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"]; 
 
    this._nav_ny = hh("&#x00bb;", 1, 2); 
    this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"]; 
 
    // day names 
    row = Calendar.createElement("tr", thead); 
    row.className = "daynames"; 
    if (this.weekNumbers) { 
        cell = Calendar.createElement("td", row); 
        cell.className = "name wn"; 
        cell.innerHTML = Calendar._TT["WK"]; 
    } 
    for (var i = 7; i > 0; --i) { 
        cell = Calendar.createElement("td", row); 
        if (!i) { 
            cell.navtype = 100; 
            cell.calendar = this; 
            Calendar._add_evs(cell); 
        } 
    } 
    this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild; 
    this._displayWeekdays(); 
 
    var tbody = Calendar.createElement("tbody", table); 
    this.tbody = tbody; 
 
    for (i = 6; i > 0; --i) { 
        row = Calendar.createElement("tr", tbody); 
        if (this.weekNumbers) { 
            cell = Calendar.createElement("td", row); 
        } 
        for (var j = 7; j > 0; --j) { 
            cell = Calendar.createElement("td", row); 
            cell.calendar = this; 
            Calendar._add_evs(cell); 
        } 
    } 
 
    if (this.showsTime) { 
        row = Calendar.createElement("tr", tbody); 
        row.className = "time"; 
 
        cell = Calendar.createElement("td", row); 
        cell.className = "time"; 
        cell.colSpan = 2; 
        cell.innerHTML = Calendar._TT["TIME"] || "&nbsp;"; 
 
        cell = Calendar.createElement("td", row); 
        cell.className = "time"; 
        cell.colSpan = this.weekNumbers ? 4 : 3; 
 
        (function(){ 
            function makeTimePart(className, init, range_start, range_end) { 
                var part = Calendar.createElement("span", cell); 
                part.className = className; 
                part.innerHTML = init; 
                part.calendar = cal; 
                part.ttip = Calendar._TT["TIME_PART"]; 
                part.navtype = 50; 
                part._range = []; 
                if (typeof range_start != "number") 
                    part._range = range_start; 
                else { 
                    for (var i = range_start; i <= range_end; ++i) { 
                        var txt; 
                        if (i < 10 && range_end >= 10) txt = '0' + i; 
                        else txt = '' + i; 
                        part._range[part._range.length] = txt; 
                    } 
                } 
                Calendar._add_evs(part); 
                return part; 
            }; 
            var hrs = cal.date.getHours(); 
            var mins = cal.date.getMinutes(); 
            var t12 = !cal.time24; 
            var pm = (hrs > 12); 
            if (t12 && pm) hrs -= 12; 
            var H = makeTimePart("hour", hrs, t12 ? 1 : 0, t12 ? 12 : 23); 
            var span = Calendar.createElement("span", cell); 
            span.innerHTML = ":"; 
            span.className = "colon"; 
            var M = makeTimePart("minute", mins, 0, 59); 
            var AP = null; 
            cell = Calendar.createElement("td", row); 
            cell.className = "time"; 
            cell.colSpan = 2; 
            if (t12) 
                AP = makeTimePart("ampm", pm ? "pm" : "am", ["am", "pm"]); 
            else 
                cell.innerHTML = "&nbsp;"; 
 
            cal.onSetTime = function() { 
                var pm, hrs = this.date.getHours(), 
                    mins = this.date.getMinutes(); 
                if (t12) { 
                    pm = (hrs >= 12); 
                    if (pm) hrs -= 12; 
                    if (hrs == 0) hrs = 12; 
                    AP.innerHTML = pm ? "pm" : "am"; 
                } 
                H.innerHTML = (hrs < 10) ? ("0" + hrs) : hrs; 
                M.innerHTML = (mins < 10) ? ("0" + mins) : mins; 
            }; 
 
            cal.onUpdateTime = function() { 
                var date = this.date; 
                var h = parseInt(H.innerHTML, 10); 
                if (t12) { 
                    if (/pm/i.test(AP.innerHTML) && h < 12) 
                        h += 12; 
                    else if (/am/i.test(AP.innerHTML) && h == 12) 
                        h = 0; 
                } 
                var d = date.getDate(); 
                var m = date.getMonth(); 
                var y = date.getFullYear(); 
                date.setHours(h); 
                date.setMinutes(parseInt(M.innerHTML, 10)); 
                date.setFullYear(y); 
                date.setMonth(m); 
                date.setDate(d); 
                this.dateClicked = false; 
                this.callHandler(); 
            }; 
        })(); 
    } else { 
        this.onSetTime = this.onUpdateTime = function() {}; 
    } 
 
    var tfoot = Calendar.createElement("tfoot", table); 
 
    row = Calendar.createElement("tr", tfoot); 
    row.className = "footrow"; 
 
    cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300); 
    cell.className = "ttip"; 
    if (this.isPopup) { 
        cell.ttip = Calendar._TT["DRAG_TO_MOVE"]; 
        cell.style.cursor = "move"; 
    } 
    this.tooltips = cell; 
 
    div = Calendar.createElement("div", this.element); 
    this.monthsCombo = div; 
    div.className = "combo"; 
    for (i = 0; i < Calendar._MN.length; ++i) { 
        var mn = Calendar.createElement("div"); 
        mn.className = Calendar.is_ie ? "label-IEfix" : "label"; 
        mn.month = i; 
        mn.innerHTML = Calendar._SMN[i]; 
        div.appendChild(mn); 
    } 
 
    div = Calendar.createElement("div", this.element); 
    this.yearsCombo = div; 
    div.className = "combo"; 
    for (i = 12; i > 0; --i) { 
        var yr = Calendar.createElement("div"); 
        yr.className = Calendar.is_ie ? "label-IEfix" : "label"; 
        div.appendChild(yr); 
    } 
 
    this._init(this.firstDayOfWeek, this.date); 
    parent.appendChild(this.element); 
}; 
 
/** keyboard navigation, only for popup calendars */ 
Calendar._keyEvent = function(ev) { 
    var cal = window._dynarch_popupCalendar; 
    if (!cal || cal.multiple) 
        return false; 
    (Calendar.is_ie) && (ev = window.event); 
    var act = (Calendar.is_ie || ev.type == "keypress"), 
        K = ev.keyCode; 
    if (ev.ctrlKey) { 
        switch (K) { 
            case 37: // KEY left 
            act && Calendar.cellClick(cal._nav_pm); 
            break; 
            case 38: // KEY up 
            act && Calendar.cellClick(cal._nav_py); 
            break; 
            case 39: // KEY right 
            act && Calendar.cellClick(cal._nav_nm); 
            break; 
            case 40: // KEY down 
            act && Calendar.cellClick(cal._nav_ny); 
            break; 
            default: 
            return false; 
        } 
    } else switch (K) { 
        case 32: // KEY space (now) 
        Calendar.cellClick(cal._nav_now); 
        break; 
        case 27: // KEY esc 
        act && cal.callCloseHandler(); 
        break; 
        case 37: // KEY left 
        case 38: // KEY up 
        case 39: // KEY right 
        case 40: // KEY down 
        if (act) { 
            var prev, x, y, ne, el, step; 
            prev = K == 37 || K == 38; 
            step = (K == 37 || K == 39) ? 1 : 7; 
            function setVars() { 
                el = cal.currentDateEl; 
                var p = el.pos; 
                x = p & 15; 
                y = p >> 4; 
                ne = cal.ar_days[y][x]; 
            };setVars(); 
            function prevMonth() { 
                var date = new Date(cal.date); 
                date.setDate(date.getDate() - step); 
                cal.setDate(date); 
            }; 
            function nextMonth() { 
                var date = new Date(cal.date); 
                date.setDate(date.getDate() + step); 
                cal.setDate(date); 
            }; 
            while (1) { 
                switch (K) { 
                    case 37: // KEY left 
                    if (--x >= 0) 
                        ne = cal.ar_days[y][x]; 
                    else { 
                        x = 6; 
                        K = 38; 
                        continue; 
                    } 
                    break; 
                    case 38: // KEY up 
                    if (--y >= 0) 
                        ne = cal.ar_days[y][x]; 
                    else { 
                        prevMonth(); 
                        setVars(); 
                    } 
                    break; 
                    case 39: // KEY right 
                    if (++x < 7) 
                        ne = cal.ar_days[y][x]; 
                    else { 
                        x = 0; 
                        K = 40; 
                        continue; 
                    } 
                    break; 
                    case 40: // KEY down 
                    if (++y < cal.ar_days.length) 
                        ne = cal.ar_days[y][x]; 
                    else { 
                        nextMonth(); 
                        setVars(); 
                    } 
                    break; 
                } 
                break; 
            } 
            if (ne) { 
                if (!ne.disabled) 
                    Calendar.cellClick(ne); 
                else if (prev) 
                    prevMonth(); 
                else 
                    nextMonth(); 
            } 
        } 
        break; 
        case 13: // KEY enter 
        if (act) 
            Calendar.cellClick(cal.currentDateEl, ev); 
        break; 
        default: 
        return false; 
    } 
    return Calendar.stopEvent(ev); 
}; 
 
/** 
 *  (RE)Initializes the calendar to the given date and firstDayOfWeek 
 */ 
Calendar.prototype._init = function (firstDayOfWeek, date) { 
    var today = new Date(), 
        TY = today.getFullYear(), 
        TM = today.getMonth(), 
        TD = today.getDate(); 
    this.table.style.visibility = "hidden"; 
    var year = date.getFullYear(); 
    if (year < this.minYear) { 
        year = this.minYear; 
        date.setFullYear(year); 
    } else if (year > this.maxYear) { 
        year = this.maxYear; 
        date.setFullYear(year); 
    } 
    this.firstDayOfWeek = firstDayOfWeek; 
    this.date = new Date(date); 
    var month = date.getMonth(); 
    var mday = date.getDate(); 
    var no_days = date.getMonthDays(); 
 
    // calendar voodoo for computing the first day that would actually be 
    // displayed in the calendar, even if it's from the previous month. 
    // WARNING: this is magic. ;-) 
    date.setDate(1); 
    var day1 = (date.getDay() - this.firstDayOfWeek) % 7; 
    if (day1 < 0) 
        day1 += 7; 
    date.setDate(-day1); 
    date.setDate(date.getDate() + 1); 
 
    var row = this.tbody.firstChild; 
    var MN = Calendar._SMN[month]; 
    var ar_days = this.ar_days = new Array(); 
    var weekend = Calendar._TT["WEEKEND"]; 
    var dates = this.multiple ? (this.datesCells = {}) : null; 
    for (var i = 0; i < 6; ++i, row = row.nextSibling) { 
        var cell = row.firstChild; 
        if (this.weekNumbers) { 
            cell.className = "day wn"; 
            cell.innerHTML = date.getWeekNumber(); 
            cell = cell.nextSibling; 
        } 
        row.className = "daysrow"; 
        var hasdays = false, iday, dpos = ar_days[i] = []; 
        for (var j = 0; j < 7; ++j, cell = cell.nextSibling, date.setDate(iday + 1)) { 
            iday = date.getDate(); 
            var wday = date.getDay(); 
            cell.className = "day"; 
            cell.pos = i << 4 | j; 
            dpos[j] = cell; 
            var current_month = (date.getMonth() == month); 
            if (!current_month) { 
                if (this.showsOtherMonths) { 
                    cell.className += " othermonth"; 
                    cell.otherMonth = true; 
                } else { 
                    cell.className = "emptycell"; 
                    cell.innerHTML = "&nbsp;"; 
                    cell.disabled = true; 
                    continue; 
                } 
            } else { 
                cell.otherMonth = false; 
                hasdays = true; 
            } 
            cell.disabled = false; 
            cell.innerHTML = this.getDateText ? this.getDateText(date, iday) : iday; 
            if (dates) 
                dates[date.print("%Y%m%d")] = cell; 
            if (this.getDateStatus) { 
                var status = this.getDateStatus(date, year, month, iday); 
                if (status === true) { 
                    cell.className += " disabled"; 
                    cell.disabled = true; 
                } else { 
                    if (/disabled/i.test(status)) 
                        cell.disabled = true; 
                    cell.className += " " + status; 
                } 
            } 
            if (!cell.disabled) { 
                cell.caldate = new Date(date); 
                cell.ttip = "_"; 
                if (!this.multiple && current_month 
                    && iday == mday && this.hiliteToday) { 
                    cell.className += " selected"; 
                    this.currentDateEl = cell; 
                } 
                if (date.getFullYear() == TY && 
                    date.getMonth() == TM && 
                    iday == TD) { 
                    cell.className += " today"; 
                    cell.ttip += Calendar._TT["PART_TODAY"]; 
                } 
                if (weekend.indexOf(wday.toString()) != -1) 
                    cell.className += cell.otherMonth ? " oweekend" : " weekend"; 
            } 
        } 
        if (!(hasdays || this.showsOtherMonths)) 
            row.className = "emptyrow"; 
    } 
    this.title.innerHTML = Calendar._MN[month] + ", " + year; 
    this.onSetTime(); 
    this.table.style.visibility = "visible"; 
    this._initMultipleDates(); 
    // PROFILE 
    // this.tooltips.innerHTML = "Generated in " + ((new Date()) - today) + " ms"; 
}; 
 
Calendar.prototype._initMultipleDates = function() { 
    if (this.multiple) { 
        for (var i in this.multiple) { 
            var cell = this.datesCells[i]; 
            var d = this.multiple[i]; 
            if (!d) 
                continue; 
            if (cell) 
                cell.className += " selected"; 
        } 
    } 
}; 
 
Calendar.prototype._toggleMultipleDate = function(date) { 
    if (this.multiple) { 
        var ds = date.print("%Y%m%d"); 
        var cell = this.datesCells[ds]; 
        if (cell) { 
            var d = this.multiple[ds]; 
            if (!d) { 
                Calendar.addClass(cell, "selected"); 
                this.multiple[ds] = date; 
            } else { 
                Calendar.removeClass(cell, "selected"); 
                delete this.multiple[ds]; 
            } 
        } 
    } 
}; 
 
Calendar.prototype.setDateToolTipHandler = function (unaryFunction) { 
    this.getDateToolTip = unaryFunction; 
}; 
 
/** 
 *  Calls _init function above for going to a certain date (but only if the 
 *  date is different than the currently selected one). 
 */ 
Calendar.prototype.setDate = function (date) { 
    if (!date.equalsTo(this.date)) { 
        this._init(this.firstDayOfWeek, date); 
    } 
}; 
 
/** 
 *  Refreshes the calendar.  Useful if the "disabledHandler" function is 
 *  dynamic, meaning that the list of disabled date can change at runtime. 
 *  Just * call this function if you think that the list of disabled dates 
 *  should * change. 
 */ 
Calendar.prototype.refresh = function () { 
    this._init(this.firstDayOfWeek, this.date); 
}; 
 
/** Modifies the "firstDayOfWeek" parameter (pass 0 for Synday, 1 for Monday, etc.). */ 
Calendar.prototype.setFirstDayOfWeek = function (firstDayOfWeek) { 
    this._init(firstDayOfWeek, this.date); 
    this._displayWeekdays(); 
}; 
 
/** 
 *  Allows customization of what dates are enabled.  The "unaryFunction" 
 *  parameter must be a function object that receives the date (as a JS Date 
 *  object) and returns a boolean value.  If the returned value is true then 
 *  the passed date will be marked as disabled. 
 */ 
Calendar.prototype.setDateStatusHandler = Calendar.prototype.setDisabledHandler = function (unaryFunction) { 
    this.getDateStatus = unaryFunction; 
}; 
 
/** Customization of allowed year range for the calendar. */ 
Calendar.prototype.setRange = function (a, z) { 
    this.minYear = a; 
    this.maxYear = z; 
}; 
 
/** Calls the first user handler (selectedHandler). */ 
Calendar.prototype.callHandler = function () { 
    if (this.onSelected) { 
        this.onSelected(this, this.date.print(this.dateFormat)); 
    } 
}; 
 
/** Calls the second user handler (closeHandler). */ 
Calendar.prototype.callCloseHandler = function () { 
    if (this.onClose) { 
        this.onClose(this); 
    } 
    this.hideShowCovered(); 
}; 
 
/** Removes the calendar object from the DOM tree and destroys it. */ 
Calendar.prototype.destroy = function () { 
    var el = this.element.parentNode; 
    el.removeChild(this.element); 
    Calendar._C = null; 
    window._dynarch_popupCalendar = null; 
}; 
 
/** 
 *  Moves the calendar element to a different section in the DOM tree (changes 
 *  its parent). 
 */ 
Calendar.prototype.reparent = function (new_parent) { 
    var el = this.element; 
    el.parentNode.removeChild(el); 
    new_parent.appendChild(el); 
}; 
 
// This gets called when the user presses a mouse button anywhere in the 
// document, if the calendar is shown.  If the click was outside the open 
// calendar this function closes it. 
Calendar._checkCalendar = function(ev) { 
    var calendar = window._dynarch_popupCalendar; 
    if (!calendar) { 
        return false; 
    } 
    var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev); 
    for (; el != null && el != calendar.element; el = el.parentNode); 
    if (el == null) { 
        // calls closeHandler which should hide the calendar. 
        window._dynarch_popupCalendar.callCloseHandler(); 
        return Calendar.stopEvent(ev); 
    } 
}; 
 
/** Shows the calendar. */ 
Calendar.prototype.show = function () { 
    var rows = this.table.getElementsByTagName("tr"); 
    for (var i = rows.length; i > 0;) { 
        var row = rows[--i]; 
        Calendar.removeClass(row, "rowhilite"); 
        var cells = row.getElementsByTagName("td"); 
        for (var j = cells.length; j > 0;) { 
            var cell = cells[--j]; 
            Calendar.removeClass(cell, "hilite"); 
            Calendar.removeClass(cell, "active"); 
        } 
    } 
    this.element.style.display = "block"; 
    this.hidden = false; 
    if (this.isPopup) { 
        window._dynarch_popupCalendar = this; 
        Calendar.addEvent(document, "keydown", Calendar._keyEvent); 
        Calendar.addEvent(document, "keypress", Calendar._keyEvent); 
        Calendar.addEvent(document, "mousedown", Calendar._checkCalendar); 
    } 
    this.hideShowCovered(); 
}; 
 
/** 
 *  Hides the calendar.  Also removes any "hilite" from the class of any TD 
 *  element. 
 */ 
Calendar.prototype.hide = function () { 
    if (this.isPopup) { 
        Calendar.removeEvent(document, "keydown", Calendar._keyEvent); 
        Calendar.removeEvent(document, "keypress", Calendar._keyEvent); 
        Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar); 
    } 
    this.element.style.display = "none"; 
    this.hidden = true; 
    this.hideShowCovered(); 
}; 
 
/** 
 *  Shows the calendar at a given absolute position (beware that, depending on 
 *  the calendar element style -- position property -- this might be relative 
 *  to the parent's containing rectangle). 
 */ 
Calendar.prototype.showAt = function (x, y) { 
    var s = this.element.style; 
    s.left = x + "px"; 
    s.top = y + "px"; 
    this.show(); 
}; 
 
/** Shows the calendar near a given element. */ 
Calendar.prototype.showAtElement = function (el, opts) { 
    var self = this; 
    var p = Calendar.getAbsolutePos(el); 
    if (!opts || typeof opts != "string") { 
        this.showAt(p.x, p.y + el.offsetHeight); 
        return true; 
    } 
    function fixPosition(box) { 
        if (box.x < 0) 
            box.x = 0; 
        if (box.y < 0) 
            box.y = 0; 
        var cp = document.createElement("div"); 
        var s = cp.style; 
        s.position = "absolute"; 
        s.right = s.bottom = s.width = s.height = "0px"; 
        document.body.appendChild(cp); 
        var br = Calendar.getAbsolutePos(cp); 
        document.body.removeChild(cp); 
        if (Calendar.is_ie) { 
            br.y += document.body.scrollTop; 
            br.x += document.body.scrollLeft; 
        } else { 
            br.y += window.scrollY; 
            br.x += window.scrollX; 
        } 
        var tmp = box.x + box.width - br.x; 
        if (tmp > 0) box.x -= tmp; 
        tmp = box.y + box.height - br.y; 
        if (tmp > 0) box.y -= tmp; 
    }; 
    this.element.style.display = "block"; 
    Calendar.continuation_for_the_fucking_khtml_browser = function() { 
        var w = self.element.offsetWidth; 
        var h = self.element.offsetHeight; 
        self.element.style.display = "none"; 
        var valign = opts.substr(0, 1); 
        var halign = "l"; 
        if (opts.length > 1) { 
            halign = opts.substr(1, 1); 
        } 
        // vertical alignment 
        switch (valign) { 
            case "T": p.y -= h; break; 
            case "B": p.y += el.offsetHeight; break; 
            case "C": p.y += (el.offsetHeight - h) / 2; break; 
            case "t": p.y += el.offsetHeight - h; break; 
            case "b": break; // already there 
        } 
        // horizontal alignment 
        switch (halign) { 
            case "L": p.x -= w; break; 
            case "R": p.x += el.offsetWidth; break; 
            case "C": p.x += (el.offsetWidth - w) / 2; break; 
            case "l": p.x += el.offsetWidth - w; break; 
            case "r": break; // already there 
        } 
        p.width = w; 
        p.height = h + 40; 
        self.monthsCombo.style.display = "none"; 
        fixPosition(p); 
        self.showAt(p.x, p.y); 
    }; 
    if (Calendar.is_khtml) 
        setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10); 
    else 
        Calendar.continuation_for_the_fucking_khtml_browser(); 
}; 
 
/** Customizes the date format. */ 
Calendar.prototype.setDateFormat = function (str) { 
    this.dateFormat = str; 
}; 
 
/** Customizes the tooltip date format. */ 
Calendar.prototype.setTtDateFormat = function (str) { 
    this.ttDateFormat = str; 
}; 
 
/** 
 *  Tries to identify the date represented in a string.  If successful it also 
 *  calls this.setDate which moves the calendar to the given date. 
 */ 
Calendar.prototype.parseDate = function(str, fmt) { 
    if (!fmt) 
        fmt = this.dateFormat; 
    this.setDate(Date.parseDate(str, fmt)); 
}; 
 
Calendar.prototype.hideShowCovered = function () { 
    if (!Calendar.is_ie && !Calendar.is_opera) 
        return; 
    function getVisib(obj){ 
        var value = obj.style.visibility; 
        if (!value) { 
            if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C 
                if (!Calendar.is_khtml) 
                    value = document.defaultView. 
                        getComputedStyle(obj, "").getPropertyValue("visibility"); 
                else 
                    value = ''; 
            } else if (obj.currentStyle) { // IE 
                value = obj.currentStyle.visibility; 
            } else 
                value = ''; 
        } 
        return value; 
    }; 
 
    var tags = new Array("applet", "iframe", "select"); 
    var el = this.element; 
 
    var p = Calendar.getAbsolutePos(el); 
    var EX1 = p.x; 
    var EX2 = el.offsetWidth + EX1; 
    var EY1 = p.y; 
    var EY2 = el.offsetHeight + EY1; 
 
    for (var k = tags.length; k > 0; ) { 
        var ar = document.getElementsByTagName(tags[--k]); 
        var cc = null; 
 
        for (var i = ar.length; i > 0;) { 
            cc = ar[--i]; 
 
            p = Calendar.getAbsolutePos(cc); 
            var CX1 = p.x; 
            var CX2 = cc.offsetWidth + CX1; 
            var CY1 = p.y; 
            var CY2 = cc.offsetHeight + CY1; 
 
            if (this.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) { 
                if (!cc.__msh_save_visibility) { 
                    cc.__msh_save_visibility = getVisib(cc); 
                } 
                cc.style.visibility = cc.__msh_save_visibility; 
            } else { 
                if (!cc.__msh_save_visibility) { 
                    cc.__msh_save_visibility = getVisib(cc); 
                } 
                cc.style.visibility = "hidden"; 
            } 
        } 
    } 
}; 
 
/** Internal function; it displays the bar with the names of the weekday. */ 
Calendar.prototype._displayWeekdays = function () { 
    var fdow = this.firstDayOfWeek; 
    var cell = this.firstdayname; 
    var weekend = Calendar._TT["WEEKEND"]; 
    for (var i = 0; i < 7; ++i) { 
        cell.className = "day name"; 
        var realday = (i + fdow) % 7; 
        if (i) { 
            cell.ttip = Calendar._TT["DAY_FIRST"].replace("%s", Calendar._DN[realday]); 
            cell.navtype = 100; 
            cell.calendar = this; 
            cell.fdow = realday; 
            Calendar._add_evs(cell); 
        } 
        if (weekend.indexOf(realday.toString()) != -1) { 
            Calendar.addClass(cell, "weekend"); 
        } 
        cell.innerHTML = Calendar._SDN[(i + fdow) % 7]; 
        cell = cell.nextSibling; 
    } 
}; 
 
/** Internal function.  Hides all combo boxes that might be displayed. */ 
Calendar.prototype._hideCombos = function () { 
    this.monthsCombo.style.display = "none"; 
    this.yearsCombo.style.display = "none"; 
}; 
 
/** Internal function.  Starts dragging the element. */ 
Calendar.prototype._dragStart = function (ev) { 
    if (this.dragging) { 
        return; 
    } 
    this.dragging = true; 
    var posX; 
    var posY; 
    if (Calendar.is_ie) { 
        posY = window.event.clientY + document.body.scrollTop; 
        posX = window.event.clientX + document.body.scrollLeft; 
    } else { 
        posY = ev.clientY + window.scrollY; 
        posX = ev.clientX + window.scrollX; 
    } 
    var st = this.element.style; 
    this.xOffs = posX - parseInt(st.left); 
    this.yOffs = posY - parseInt(st.top); 
    with (Calendar) { 
        addEvent(document, "mousemove", calDragIt); 
        addEvent(document, "mouseup", calDragEnd); 
    } 
}; 
 
// BEGIN: DATE OBJECT PATCHES 
 
/** Adds the number of days array to the Date object. */ 
Date._MD = new Array(31,28,31,30,31,30,31,31,30,31,30,31); 
 
/** Constants used for time computations */ 
Date.SECOND = 1000 /* milliseconds */; 
Date.MINUTE = 60 * Date.SECOND; 
Date.HOUR   = 60 * Date.MINUTE; 
Date.DAY    = 24 * Date.HOUR; 
Date.WEEK   =  7 * Date.DAY; 
 
Date.parseDate = function(str, fmt) { 
    var today = new Date(); 
    var y = 0; 
    var m = -1; 
    var d = 0; 
    var a = str.split(/\W+/); 
    var b = fmt.match(/%./g); 
    var i = 0, j = 0; 
    var hr = 0; 
    var min = 0; 
    for (i = 0; i < a.length; ++i) { 
        if (!a[i]) 
            continue; 
        switch (b[i]) { 
            case "%d": 
            case "%e": 
            d = parseInt(a[i], 10); 
            break; 
 
            case "%m": 
            m = parseInt(a[i], 10) - 1; 
            break; 
 
            case "%Y": 
            case "%y": 
            y = parseInt(a[i], 10); 
            (y < 100) && (y += (y > 29) ? 1900 : 2000); 
            break; 
 
            case "%b": 
            case "%B": 
            for (j = 0; j < 12; ++j) { 
                if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; } 
            } 
            break; 
 
            case "%H": 
            case "%I": 
            case "%k": 
            case "%l": 
            hr = parseInt(a[i], 10); 
            break; 
 
            case "%P": 
            case "%p": 
            if (/pm/i.test(a[i]) && hr < 12) 
                hr += 12; 
            else if (/am/i.test(a[i]) && hr >= 12) 
                hr -= 12; 
            break; 
 
            case "%M": 
            min = parseInt(a[i], 10); 
            break; 
        } 
    } 
    if (isNaN(y)) y = today.getFullYear(); 
    if (isNaN(m)) m = today.getMonth(); 
    if (isNaN(d)) d = today.getDate(); 
    if (isNaN(hr)) hr = today.getHours(); 
    if (isNaN(min)) min = today.getMinutes(); 
    if (y != 0 && m != -1 && d != 0) 
        return new Date(y, m, d, hr, min, 0); 
    y = 0; m = -1; d = 0; 
    for (i = 0; i < a.length; ++i) { 
        if (a[i].search(/[a-zA-Z]+/) != -1) { 
            var t = -1; 
            for (j = 0; j < 12; ++j) { 
                if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; } 
            } 
            if (t != -1) { 
                if (m != -1) { 
                    d = m+1; 
                } 
                m = t; 
            } 
        } else if (parseInt(a[i], 10) <= 12 && m == -1) { 
            m = a[i]-1; 
        } else if (parseInt(a[i], 10) > 31 && y == 0) { 
            y = parseInt(a[i], 10); 
            (y < 100) && (y += (y > 29) ? 1900 : 2000); 
        } else if (d == 0) { 
            d = a[i]; 
        } 
    } 
    if (y == 0) 
        y = today.getFullYear(); 
    if (m != -1 && d != 0) 
        return new Date(y, m, d, hr, min, 0); 
    return today; 
}; 
 
/** Returns the number of days in the current month */ 
Date.prototype.getMonthDays = function(month) { 
    var year = this.getFullYear(); 
    if (typeof month == "undefined") { 
        month = this.getMonth(); 
    } 
    if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) { 
        return 29; 
    } else { 
        return Date._MD[month]; 
    } 
}; 
 
/** Returns the number of day in the year. */ 
Date.prototype.getDayOfYear = function() { 
    var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0); 
    var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0); 
    var time = now - then; 
    return Math.floor(time / Date.DAY); 
}; 
 
/** Returns the number of the week in year, as defined in ISO 8601. */ 
Date.prototype.getWeekNumber = function() { 
    var d = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0); 
    var DoW = d.getDay(); 
    d.setDate(d.getDate() - (DoW + 6) % 7 + 3); // Nearest Thu 
    var ms = d.valueOf(); // GMT 
    d.setMonth(0); 
    d.setDate(4); // Thu in Week 1 
    return Math.round((ms - d.valueOf()) / (7 * 864e5)) + 1; 
}; 
 
/** Checks date and time equality */ 
Date.prototype.equalsTo = function(date) { 
    return ((this.getFullYear() == date.getFullYear()) && 
        (this.getMonth() == date.getMonth()) && 
        (this.getDate() == date.getDate()) && 
        (this.getHours() == date.getHours()) && 
        (this.getMinutes() == date.getMinutes())); 
}; 
 
/** Set only the year, month, date parts (keep existing time) */ 
Date.prototype.setDateOnly = function(date) { 
    var tmp = new Date(date); 
    this.setDate(1); 
    this.setFullYear(tmp.getFullYear()); 
    this.setMonth(tmp.getMonth()); 
    this.setDate(tmp.getDate()); 
}; 
 
/** Prints the date in a string according to the given format. */ 
Date.prototype.print = function (str) { 
    var m = this.getMonth(); 
    var d = this.getDate(); 
    var y = this.getFullYear(); 
    var wn = this.getWeekNumber(); 
    var w = this.getDay(); 
    var s = {}; 
    var hr = this.getHours(); 
    var pm = (hr >= 12); 
    var ir = (pm) ? (hr - 12) : hr; 
    var dy = this.getDayOfYear(); 
    if (ir == 0) 
        ir = 12; 
    var min = this.getMinutes(); 
    var sec = this.getSeconds(); 
    s["%a"] = Calendar._SDN[w]; // abbreviated weekday name [FIXME: I18N] 
    s["%A"] = Calendar._DN[w]; // full weekday name 
    s["%b"] = Calendar._SMN[m]; // abbreviated month name [FIXME: I18N] 
    s["%B"] = Calendar._MN[m]; // full month name 
    // FIXME: %c : preferred date and time representation for the current locale 
    s["%C"] = 1 + Math.floor(y / 100); // the century number 
    s["%d"] = (d < 10) ? ("0" + d) : d; // the day of the month (range 01 to 31) 
    s["%e"] = d; // the day of the month (range 1 to 31) 
    // FIXME: %D : american date style: %m/%d/%y 
    // FIXME: %E, %F, %G, %g, %h (man strftime) 
    s["%H"] = (hr < 10) ? ("0" + hr) : hr; // hour, range 00 to 23 (24h format) 
    s["%I"] = (ir < 10) ? ("0" + ir) : ir; // hour, range 01 to 12 (12h format) 
    s["%j"] = (dy < 100) ? ((dy < 10) ? ("00" + dy) : ("0" + dy)) : dy; // day of the year (range 001 to 366) 
    s["%k"] = hr;       // hour, range 0 to 23 (24h format) 
    s["%l"] = ir;       // hour, range 1 to 12 (12h format) 
    s["%m"] = (m < 9) ? ("0" + (1+m)) : (1+m); // month, range 01 to 12 
    s["%M"] = (min < 10) ? ("0" + min) : min; // minute, range 00 to 59 
    s["%n"] = "\n";     // a newline character 
    s["%p"] = pm ? "PM" : "AM"; 
    s["%P"] = pm ? "pm" : "am"; 
    // FIXME: %r : the time in am/pm notation %I:%M:%S %p 
    // FIXME: %R : the time in 24-hour notation %H:%M 
    s["%s"] = Math.floor(this.getTime() / 1000); 
    s["%S"] = (sec < 10) ? ("0" + sec) : sec; // seconds, range 00 to 59 
    s["%t"] = "\t";     // a tab character 
    // FIXME: %T : the time in 24-hour notation (%H:%M:%S) 
    s["%U"] = s["%W"] = s["%V"] = (wn < 10) ? ("0" + wn) : wn; 
    s["%u"] = w + 1;    // the day of the week (range 1 to 7, 1 = MON) 
    s["%w"] = w;        // the day of the week (range 0 to 6, 0 = SUN) 
    // FIXME: %x : preferred date representation for the current locale without the time 
    // FIXME: %X : preferred time representation for the current locale without the date 
    s["%y"] = ('' + y).substr(2, 2); // year without the century (range 00 to 99) 
    s["%Y"] = y;        // year with the century 
    s["%%"] = "%";      // a literal '%' character 
 
    var re = /%./g; 
    if (!Calendar.is_ie5 && !Calendar.is_khtml) { 
        str = str.replace(re, function (par) { return s[par]; }); 
        return str; 
    } 
 
    var a = str.match(re); 
    for (var i = 0; i < a.length; i++) { 
        var tmp = s[a[i]]; 
        if (tmp) { 
            re = new RegExp(a[i], 'g'); 
            str = str.replace(re, tmp); 
        } 
    } 
 
    return str; 
}; 
 
Date.prototype.__msh_oldSetFullYear = Date.prototype.setFullYear; 
Date.prototype.setFullYear = function(y) { 
    var d = new Date(this); 
    d.__msh_oldSetFullYear(y); 
    if (d.getMonth() != this.getMonth()) 
        this.setDate(28); 
    this.__msh_oldSetFullYear(y); 
}; 
 
// END: DATE OBJECT PATCHES 
 
 
// global object that remembers the calendar 
window._dynarch_popupCalendar = null; 
